Logic.ly Features

Logic gates

Includes all of the standard gates you need — such as AND, OR, NOT, XOR, NAND, NOR, and XNOR. Includes many other primitives, including tri-state buffers and pull up/down resistors.

Bundle custom objects

Did you create something more complex from the primitive gates, and you'd like to reuse it elsewhere in the same file? Bundle it up as a reusable "integrated circuit", and you can drag and drop it just like any other component.

Truth tables

Analyze all parts of your circuit with automatically generated truth tables. You can create a table for the current selection, for a custom integrated circuit, or even for your entire file. You can export the table as a CSV file too.

Simulation controls

Pause the simulation, and step through it to watch how the signal propagates. Or, reset the simulation entirely to start fresh in a "just turned on" state.

Logic signal types

The simulation supports four types of signals, including true (1), false (0), high impedence (hi-z) and a special error state. Any of these signals may be used as the default for inputs too.

Strict or loose mode

Strict mode doesn't like unconnected "floating" inputs, and requires a little more disipline, but you can turn it off, if you prefer.

Undo and redo

Let students experiment in a "no worries" simulation where undo is a click away — before building physical circuits.

Cut, copy, and paste

Duplicate parts of your circuit, and easily move creations from one file to another.

Zoom and pan

Navigate your circuit like a pro by zooming in or out and panning in any direction, just like you would with a map.

Save files

Easily save your creation to a file that can be re-opened and edited later, attached to an email, or shared over a network.


Create a hard-copy of your circuit on paper to hand-in to an instructor. Or display it on your refrigerator!

Import/export circuit libraries

Customize Logicly for your curriculum by building libraries of custom circuits that students can "import" into their work.

Edit multiple files

Open more than one file at a time, each in its own window.

Real-time visual updates

Watch as the wires and lamps change color, based on the current signals passing through them.

International symbol standards

Choose between IEC and ANSI/IEEE logic symbol standards.

Students and educators around the world enjoy learning with Logicly

Join them today. Add Logicly to your classroom or computer lab.

Start your free trial